A partial solar eclipse over San Diego.
There’s a partial eclipse tomorrow afternoon, most prominent at about 5:15.
The Reuben H. Fleet museum has glasses you can wear to view it. Alternatively, a neat way to watch it is to make yourself a box camera. Take a big box. Fold down or remove the top flaps. Pop a small round hole in a side of it with a pen, then let the sun shine through the hole to the inside of the box, where you should see the eclipse well-defined.
If you want to get sophisticated about it, cut a larger hole in the side, cover it with aluminum foil, then make your small hole in the foil — easier to make a nice clean hole in foil than in cardboard. Tape a white piece of paper to the inside of the box so the “camera” will project onto it. A bigger hole makes a bigger but less defined image; the hole should be as round as possible.
You can also do some things with binoculars as a lens, projecting onto a piece of paper. NOT looking through them, obviously.